Update dependency org.jenkins-ci.plugins:plugin to v6 (#116)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>org.jenkins-ci.plugins</groupId>
     <artifactId>plugin</artifactId>
-    <version>5.2099.v68c2f5e27299</version>
+    <version>6.2105.v7d6ddb_2da_0d2</version>
     <relativePath />
   </parent>